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脑内出血体积的扩大是使临床病情恶化的主要原因。本文利用ROC分析法研究了脑内出血发生后CT扫描的变化,以确定血肿扩大的发生率和时程。 方法 自发性脑内出血病人204例,于症状发生的48h内行首次CT扫描,120h内行第2次扫描。脑内出血体积测定用以下方法:CT片上脑内出血的范围即最大直径为A线(cm),垂直于A线的最大直径为B线,血肿CT片的张数乘以片的厚度得出C线,3者相乘再除以2(A×B×C/2)即为脑内出血的体积。首次(V_1)和第2次(V_2)CT扫描时血肿的差值(V_2-V_1)或
Expansion of intracerebral hemorrhage is the main reason for the deterioration of clinical conditions. In this paper, ROC analysis of intracranial hemorrhage after CT scan changes in order to determine the incidence and duration of hematoma enlargement. Methods 204 cases of spontaneous intracerebral hemorrhage patients, within 48h of onset of symptoms within the first CT scan, 120h within the second scan line. The volume of intracerebral hemorrhage was measured by the following method: the range of intracerebral hemorrhage on CT slice is the maximum diameter is A line (cm), the maximum diameter perpendicular to line A is line B, the number of hematoma CT slices multiplied by the thickness of slice C , 3 multiplied by 2 (A × B × C / 2) is the volume of intracerebral hemorrhage. The difference of hematoma (V_2-V_1) or (V_2-V_1) at the first (V_1) and second (V_2)